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Merge Protected PDF Documents | C#
Program.cs:
C#
using System.Diagnostics; using Bytescout.PDFExtractor; namespace MergeDocuments { // // This example demonstrates how to provide password for protected PDF files. // class Program { static void Main(string[] args) { string[] inputFiles = new string[] { @".\encrypted1 (password is 'password').pdf", @".\encrypted2 (password is 'password').pdf", }; using (DocumentMerger merger = new DocumentMerger("demo", "demo")) { // Handle `PasswordRequired` event merger.PasswordRequired += new PasswordEventHandler(merger_PasswordRequired); // Ignore document permissions merger.CheckPermissions = false; merger.Merge(inputFiles, @".\result.pdf"); } // Open result document in default associated application (for demo purpose) ProcessStartInfo processStartInfo = new ProcessStartInfo("result.pdf"); processStartInfo.UseShellExecute = true; Process.Start(processStartInfo); } static void merger_PasswordRequired(object sender, string document, ref string password) { // Ask user for password and return it using `password` parameter password = "password"; } } }